| Patent application number | Description | Published |
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| 20080229348 | OPTICAL DISC DRIVE - An optical disc drive includes a traverse deck having left and right sides to be balanced. The optical disc drive includes a main deck, a tray, a turntable, an optical pickup, a traverse deck, and a balancer. The optical pickup is mounted movably in the back-and-forth direction to emit light to an optical disc placed on the turntable to read and write information from and to the optical disc. On the traverse deck, the turntable is mounted at the front side of the traverse deck and the optical pickup is mounted movably in the back-and-forth direction. The balancer is mounted on the traverse deck to balance the weights of the left and right sides of the traverse deck. | 09-18-2008 |
| 20090101777 | WALL MOUNT SUPPORTING APPARATUS OF FLAT PANEL DISPLAY DEVICE - A wall mount supporting apparatus of a flat panel display device includes a plurality of link assemblies which are provided between a display and a wall to rotatably support the display with respect to the wall, and a stationary bracket which is provided between the wall and the link assemblies, and includes a first side which is coupled to the wall, and a second side which is selectively coupled with at least one of the plurality of link assemblies to allow a coupling position to be moved. | 04-23-2009 |
| 20090278006 | LIFTING DEVICE FOR DISPLAY APPARATUS - Disclosed is a lifting device for a display apparatus that may include a tilting unit to allow a user to easily adjust a viewing angle of the display apparatus. The lifting device may include a wire connected to the display apparatus, and at least one tilting unit to adjust a viewing angle of the display apparatus. The tilting unit may include a rotatable arm to adjust a distance between a wall and the display apparatus, and a rotation obstructer to provide the arm, which may be supported on both the wall and the display apparatus, with a force counter to a force applied by the display apparatus to the wall when no external force is applied. | 11-12-2009 |
| 20090278008 | LIFTING DEVICE OF A DISPLAY APPARATUS - A lifting device used to fix the display apparatus to a wall. The display apparatus can be formed in a rear surface thereof with a plurality of holes. The lifting device includes a wire having both ends coupled to any one pair of holes of the plurality of holes, and a wire hanger fixed to the wall and used to hang the wire on the wall. | 11-12-2009 |
| Patent application number | Description | Published |
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| 20080278209 | METHOD OF PULSE WIDTH MODULATION SIGNAL PROCESSING AND DEVICE INCLUDING SIGNAL PROCESSING FOR PULSE WIDTH MODULATION - A method and system process a signal for PWM modulation. An amplitude control signal adjusts the amplitude of an input signal, and an offset is added to the amplitude-adjusted signal to produce an offset-adjusted signal. The offset is selected according to the amplitude adjustment applied to the input signal. The offset-adjusted signal is pulse-width modulated the to produce a pulse-width modulated signal, and the pulse-width modulated signal is filtered to reduce high frequency components thereof. | 11-13-2008 |
| 20100225391 | Three-level half-bridge pulse-width modulation amplifier and method of driving the same - A three-level half-bridge PWM amplifier includes a PWM generator and an output stage. The PWM generator changes a width of a pulse at a first level or a second level according to amplitude of an input signal and outputs a three-level PWM output signal having the first level, the second level, and a reference level. The output stage drives an output node connected to a terminal of a load to a first power supply voltage, a second power supply voltage, or a third power supply voltage based on the three-level PWM output signal. Accordingly, unnecessary static current consumption is reduced, thereby increasing efficiency. | 09-09-2010 |
| 20110064245 | HALF-BRIDGE THREE-LEVEL PWM AMPLIFIER AND AUDIO PROCESSING APPARATUS INCLUDING THE SAME - A half-bridge three-level pulse width modulation (PWM) amplifier includes a prescaling unit, a PWM generator configured to convert the input signal to a three-level PWM signal having a first level, a second level and a reference level and an output stage. The prescaling unit scales an input signal according to at least one gain value to provide a scaled signal. The PWM generator varies the width of pulses having the first level and varies the width of pulses having a second level based on the scaled signal. The output stage drives an output node to a level of a first power supply voltage, a second power supply voltage or a third power supply voltage based on the three-level PWM signal. The output node is connected to a load. The magnitude of the at least one gain value compensates for variations of power supply voltages. | 03-17-2011 |
| 20110080217 | AUDIO AMPLIFIER - An audio amplifier includes a compensation unit, an output unit and a calibration unit. The compensation unit generates a compensation signal based on a digital input signal, a digital reference code, a mode signal and a digital approximation code. The output unit generates an output signal based on the compensated input signal. The calibration unit generates the digital approximation code based on the output signal and the mode signal. The digital approximation code includes a plurality of bits that are generated sequentially. | 04-07-2011 |
